i965: Correct scratch space allocation.

One, it was allocating increments of 1kb, but per thread scratch space
is a power of two.  Two, the new FS wasn't getting total_scratch set
at all, so everyone thought they had 1kb and writes beyond 1kb would
go stomping on a neighbor thread.

With this plus the previous register spilling for the new FS,
glsl-fs-convolution-1 passes.

1 files changed, 0 insertions, 1 deletions

diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index f38976aa8a..aa945c9771 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -3252,7 +3252,6 @@ brw_wm_fs_emit(struct brw_context *brw, struct brw_wm_compile *c)
    }
 
    c->prog_data.total_grf = v.grf_used;
-   c->prog_data.total_scratch = 0;
 
    return GL_TRUE;
 }